Spring assembly for upholstery



N O S A E L G w w SPRING ASSEMBLY FOR UPHOLSTERY Filed May 8, 1939 Q Pi Inlfen. or

Patented Apr. 9, 1940 UNITED STATES PATENT OFFICE SPRING AssEMBLY FOR UPHOLSTERY William W. Gleason, Chicago, 111., assignor to Nachman-Springfilled Corporation, Chicago, 11].; a corporation of Illinois Application May 8, 1939, Serial No. 272,429

11 Claims. (Cl. -260) The present invention has for its main object to frame 2, including the corner portions thereof, provide a spring assembly for upholstery which is as possible, so that the opposed faces of said equipped with a border frame to which the marrails disposed at top and bottom of the group of ginal springs of a group of conventional upholsprings are in contact with said outermost porstery springs are secured in a specific and adtions of the terminal coils of the marginal springs, vantageous manner, hereinafter scribed, and so that the upper border frame 2 is supported wherein rows of said groups of springs are couupon'the springs and the lower border frame 2 pled with each other in a manner and by means supports said last-named spring portions. affording appreciable advantages as also here- The slots 4 are only slightly wider than the 10. inafter described, the more specific objects of the gauge of the wire of which the helical tie wires invention being believed to be most readily comare composed so there may be little or no lateral prehensible from the following specification play between the rails of the border frame and the wherein they are pointed out, than by precedent said tie wires. statements. The diameter of the latter and the gauge of A suitable embodiment of the invention is 11- wire of which the springs I are made and the 15 lustrated in the accompanying drawing, wherein spacing of the slots 4 from a side edge of each of Fig. 1 is a fragmentary plan sectional view of a the rails 4 are so proportioned that the parts of corner portion of a spring assembly constructed the springs I encircled by the said tie wires 5 will in accordance with the invention. be very snugly engaged and thus held firmly Fig. 2 is a fragmentary view in elevation and against all lateral movement relatively to the on an enlarged scale, of a portion of the border border frame 2. frame of the structure of Fig. 1. The portions of the tie wires 5 extending Fig. 3 is a view similar to Fig. 1 showing a porthrough the corner portions 3 of the rails cooption of a modified form of the spring coupling erate with the portions of springs I encircled by strip of the structure said last-named portions of said tie wires to cou- 25 Figs. 4 and 5 are fragmentary detail sectional ple the rails of the border frame 2 with each views on a still more enlarged scale than Figs. 2 other against all relative movement.

and 3, taken on the lines 4--4 and 5-5 respective- The slots 4 are preferably of a length equal to ly of Fig. 1, showing the helical tie wire theremore than twice their width in order that two of reversed in position.. helical tie wires may be threaded through said The spring assembly is composed of parallel slots if desired as, for example to secure the rows of springs I wherein the springs of each row springs I to the border frame with a double tie. are equally spaced apart. A main advantage of the slots 4 lies in the fact Disposed peripherally of the entire area occuthat the helical tie wires 5 are rarely of equal pied bythe springs I is a border frame 2 f thin, pitch throughout their lengths and therefore are 35 fiat and highly resilient metal, which is composed accommodated easily by said slots without sacriof four rails having arcuate ends 3 disposed in fi e f ny o he la ral snug fit of the tie wires overlapping relation to each other, The said about a side edge of a rail of the said frame 2. rails are provided, preferably, midway between While perforations 6 may be substituted for slots 40 their side edges with equally spaced apart longi- 4, as shown in Fig. 3, it has b e found necessary 4 tudinal slots 4 which, in said corner portions 3, to a d perforations of a pr i y lar er are in register or substantially in register with diameter than the gauge of wire of which the tie each other. wires 5 are made and to make said tie wires of The said border frame overlaps all of the outlar er dia t r r decrease the Spacing 0 t ermost portions of the marginal springs I of the d perforations from the Side edge of t tr p group or rows thereof and is secured to the same of metal than is true of the slots 4 to assure the by means of helical tie wires 5 of a diameter subeasy threading of the tie wires I of Fig. 3 through stantially equal to one-half the width of the said perforations 6 and prevent them from berails of said frame and of such pitch as to be readc ing. w d d in n or more f t p rf aily threaded through successive slots 4 in encirtions 6. Y 50 cling relation to the last named portions of the The fiat strips 8 of the same construction as marginal springs I. the straight portions of the rails of the fame I,

It is preferable that said last-named portions are disposedinoverlapping relation to the opposed of said marginal springs I be disposed as closely portions of the terminal coils of the springs I of tangential to the outer edges of the rails of the adjacent rows which are secured to said strips 8 u by means of helical tie wires 8 corresponding with the tie wires and which encircle opposite side edges of said strips 8 and are both thread through the slots ll of strips 8.

Preferably one of each pair of the wires 0 is extended beyond the ends of the-strip 8 and has its terminals projected through slots 4 of the rails of the frame 2 as shown at II in Fig. 1.

A further advantage of the slots 4 disposed between the side edges of the flat metal elements some furniture or mattress manufacturers may prefer to have said tie wires 4 encircle the inner peripheral edge of the frame 2. Y

I claim as my invention:

1. A spring assembly including a group of interconnected upholstery springs, a border frame for said group composed of flat, resilient, metal having its flat faces disposed in planes parallel with the skeleton surfaces formed by the said group of springs, said frame being provided between its side edges with a series of equally spaced apart perforations aligned with each other, said frame disposed in overlapping relation to the outermost portions of the terminal coils of the marginal springs, of said group to border a face of the assembly and a helical tie wire threaded through said perforation in embracing relation to pertions of the springs overlapped by said frame and about the last-named side edge of the latter to secure said frame to said springs,

2. A spring assembly including a group of interconnected upholstery springs, a border frame for said group composed of flat, resilient, metal having its fiat faces disposed in planes parallel with the skeleton surfaces formed by said group of springs, said frame being provided between its side edges with a series of equally spaced apart longitudinal slots, and a helical tie wire threaded through said slots in embracing relation to portions of the springs overlapped by said frame and about the last-named side edge of the latter to secure said frame to said springs.

3. A spring assembly including a group of interconnected upholstery springs, a. border frame for said group composed of flat, resilient, metal having its fiat faces disposed in planes parallel with the skeleton surfaces formed by the said group of springs, said frame being provided between its side edges with a series of equally spaced apart perforations aligned with each other, said frame disposed in overlapping relation to the outermost portions of the terminal coils of the marginal springs of said group to border a face of the assembly with the outer side edge frame disposed substantially tangentially to said portions of the springs overlapped thereby, and a helical tie wire threaded through said perforation in embracing relation to portions of the springs overlapped by said frame and about the last-named side edge of the latter to secure said frame to said springs. V

4. A spring assembly composed of interconnected upholstery springs, a frame composed of thin, fiat, resilient, metal bordering said assembly and overlapping the outermost portions of the terminal coils of the marginal springs ofthe assembly, said frame equipped with equally spaced apart perforations midway between the side edges of its side and end rails, andthelical tie wires threaded through said perforations in embracing relation to portions of the marginal springs of said assembly overlapped thereby, the inner diameter of said tie wires being such that they substantially contact a side edge of the "rails through which they are threaded and also snugly embrace said last-named portions of said springs,

the position of said perforations being such that the said tie wires may be positioned selectively to embrace the inner or outer side edges of said rails.

5. A spring assembly composed of interconnected upholstery springs, a frame composed of thin, flat, resilient, metal bordering said assembly and overlapping the outermost portions of the terminal coils of the marginal springs of the assembly, said frame equipped with equally spaced apart longitudinal slots midway between the side edges of its side and end rails, and helical tie wires threaded through said slots in embracing relation to portions of the marginal springs of said assembly overlapped thereby, the inner diameter of said tie wires being such that they sub stantially contact a side edge of the rails through which they are threaded and also snugly embrace said last-named portions of said springs, the position of said longitudinal slots being such that the said tie wires may be positioned selectively to embrace the inner or outer side edges of said rails.

6. A spring assembly composed of interconnected upholstery springs, a frame composed "of thin, flat, resilient, metal bordering said assembly and overlapping the outermost portions of the terminal coils of the marginal springs .ofthe assembly, saidframe equipped with equally spaced apart longitudinal slots midway between the side edges of its side and end rails, and helical tie wiresthreaded through said slots in embracing relation to portions of the marginal springs of said assembly overlapped thereby, the inner diameter of said tie wires being such that they substantialy contact a side edge of the rails through which they are threaded and also snugly em brace said last-named portions of said springs, the position of said slots being such that said tie wires may be positioned selectively to embrace the inner or outer side edges of said rails, the length of said slots being such that two tie wires may be threaded through each thereof.

'7. A spring assembly comprising a plurality of parallel rows of upholstery springs, a series of thin, flat, resilient,.metal strips disposed to overlap opposed portions of the terminal coils of contiguous rows of said springs, said strips equipped with equally spaced apart perforations throughout the length thereof, and helical tie wires threaded through said perforations in embracing relation to portions of said terminal coils of springs over-lapped thereby and embracing also the respective side edges of said strips, each of the latter cooperating with said tie wires to couple all of the springs of one row with all of the springs of the next adjacent row.

8. A spring assembly comprising a plurality of parallel rows of upholstery springs, a series of thin, fiat, resilient, metal strips disposed to overlap opposed portions of the terminal coils of contiguous rows of said springs, said strips equipped with equally spaced apart longitudinal slots throughout the length thereof, and helical tie wires threaded through said slots in embracing relation to portions of said terminal coils of springs overlapped thereby and embracing also the respective side edges of said strips, each of the latter cooperating with said tie wires to couple all of the springs of one row with all of the springs of the next adjacent row.

9. A spring assembly comprising a plurality of parallel rows of upholstery springs, a series of thin, flat, resilient, metal strips disposed to overlap opposed portions of the terminal coils of contiguous rows of said springs, said strips equipped with equally spaced apart longitudinal slots of a length to accommodate two helical tie wires threaded therethrough, said slots disposed midway between the side edges of said strips, and a pair of helical tie wires threaded through said slots of each of said strips in respective embracing relation to'opposite side edges thereof and in embracing relation to portions of the terminal springs of two rows of the latter overlapped by said strips.

10. A spring assembly comprising parallel rows of upholstery springs, flat, thin, resilient, metal strips disposed in overlapping relation to opposed portions of the terminal coils of contiguous rows of said springsand equipped between their side edges with rows of equally spaced apart perforations, helical tie wires threaded through said perforations in embracing relation to the side edges of said strips and portions of the springs overlapped thereby, a similar flat strip border frame disposed in overlapping relation to the outermost portions of the terminal coils of all of the marginal springs of the assembly and equipped with perforations similarly to the said first-named'strlps, and helical tie wires threaded through the last-named perforations in embracing relation to a side edge of said frame and portions of the springs overlapped thereby, the ends of the first-named strips being spaced from said frame and said first-named tie wires connected at their ends with said frame.

11. A spring assembly comprising parallel rows of upholstery springs, flat, thin, resilient, metal strips disposed in overlapping relation to opposed portions of the terminal coils of contiguous rows of said springs and equipped midway between their side edges with rows of equally spacedapart longitudinal slots, helical tie wires threaded through saidslots in embracing relation to the sideedges of said strips and portions of the springs overlapped thereby, a similar flat strip border frame disposed in overlapping relation to the outermost portions of the terminal coils of I all of the marginal springs of the assembly and equipped with longitudinal slots similarly to the said first-named strips and helical tie wires threaded through said slots in embracing relation to a side edge of said frame and portions of the springs overlapped thereby, the ends of the first-named strips being spaced from said frame and said first-named tie wires connected at their 'ends with said frame.

wnmm w. GLEASON. 

